.round-bg{
    -moz-border-bottom-image: url("../images/bt-bg.png") 0 12px 0 12px stretch;
    -moz-border-image: url("../images/bt-bg.png") 0 12 0 12 round stretch;
    border-image: url("../images/bt-bg.png") 0 12px 0 12px stretch stretch;
    display: block;
    width:600px;
    border-width:0 12px;
    padding:10px;
    text-align: center;
    font-size: 16px;
    text-decoration: inherit;
    color:white;+color:black;
}
li[id*="f"]{line-height: 40px; background: #ffebcd;}/*包含匹配*/
li[id^="d"]{line-height: 40px; background: blue;}/*前面匹配*/
li[id$="d"]{height: 30;background: red;}/*末尾匹配*/
li[id$=\-1]{height: 30;background: red;}/*末尾为-1，这里要用转义字符\*/
li[class$="p"]:after{height: 30;background: yellow;content: "高亮  显示";}
/*属性可以使html支持的属性，content可以在后面补充内容*/